US PATENT SUBCLASS 172 / 294
.~ Sequentially operated servo-motors

Current as of: June, 1999
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172 /   HD   EARTH WORKING

293  DF  SERIES OF LIKE ELEMENTS SEQUENTIALLY OPERATED BY POWER CYCLE {3}
294.~ Sequentially operated servo-motors

DEFINITION

Classification: 172/294

(under subclass 293) Apparatus in which the actuating means comprises a plurality of servomotors which are serially operated to correspondingly move the separate parts of the apparatus.